Cellulase activity convert cellulose to simple fermentable sugars readily accessible for human consumption and genus Streptomyces is known as the largest producer of cellulases [21]. Extensive research revealed that cellulases produced from Streptomyces sp. are of optimum alkaline pH and highly thermostable [22]. Besides and Thermobifida are known to be produced recombinant cellulases [23]. A recombinants cellulase with thermal and pH stability is also reported from Streptomyces thermoviolaceus. This enzyme is highly stable and active in the presence of commercial detergents and other ionic liquids, proves its superiority to the existing commercial cellulases [24]. Cellulse from thermomonosporo fusca has used for degradation of avicel and cotton.